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[213.175.37.10]) by smtp.gmail.com with ESMTPSA id y186sm6168893wmb.41.2019.10.08.08.06.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Oct 2019 08:06:02 -0700 (PDT) From: Vitaly Kuznetsov To: Jack Wang Cc: Nadav Amit , kvm list , Paolo Bonzini , Sean Christopherson , cavery@redhat.com Subject: Re: KVM-unit-tests on AMD In-Reply-To: References: <875zkz1lbh.fsf@vitty.brq.redhat.com> Date: Tue, 08 Oct 2019 17:06:01 +0200 Message-ID: <87wodfz38m.fsf@vitty.brq.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Jack Wang writes: > Vitaly Kuznetsov 于2019年10月8日周二 下午2:20写道： >> >> Nadav Amit writes: >> >> > Is kvm-unit-test supposed to pass on AMD machines or AMD VMs?. >> > >> >> It is supposed to but it doesn't :-) Actually, not only kvm-unit-tests >> but the whole SVM would appreciate some love ... >> >> > Clearly, I ask since they do not pass on AMD on bare-metal. >> >> On my AMD EPYC 7401P 24-Core Processor bare metal I get the following >> failures: >> >> FAIL vmware_backdoors (11 tests, 8 unexpected failures) >> >> (Why can't we just check >> /sys/module/kvm/parameters/enable_vmware_backdoor btw???) >> >> FAIL svm (15 tests, 1 unexpected failures) >> >> There is a patch for that: >> >> https://lore.kernel.org/kvm/d3eeb3b5-13d7-34d2-4ce0-fdd534f2bcc3@redhat.com/T/#t >> > >> Are you seeing different failures? >> >> -- >> Vitaly > On my test machine AMD Opteron(tm) Processor 6386 SE, bare metal: > I got similar result: > vmware_backdoors (11 tests, 8 unexpected failures) > svm (13 tests, 1 unexpected failures), it failed on > FAIL: tsc_adjust > Latency VMRUN : max: 181451 min: 13150 avg: 13288 > Latency VMEXIT: max: 270048 min: 13455 avg: 13623 Right you are, the failing test is also 'tsc_adjust' for me, npt_rsvd_pfwalk (which Cathy fixed) is not being executed because we do '-cpu qemu64' for it. With the following: diff --git a/x86/unittests.cfg b/x86/unittests.cfg index b4865ac..5ecb9bb 100644 --- a/x86/unittests.cfg +++ b/x86/unittests.cfg @@ -198,7 +198,7 @@ arch = x86_64 [svm] file = svm.flat smp = 2 -extra_params = -cpu qemu64,+svm +extra_params = -cpu host,+svm arch = x86_64 [taskswitch] everything passes, including tsc_adjust: PASS: tsc_adjust Latency VMRUN : max: 43240 min: 3720 avg: 3830 Latency VMEXIT: max: 36300 min: 3540 avg: 3648 -- Vitaly